| For gas, wood & liquid fuel-fired appliances Both inner & outer walls are stainless steel Solid packed Low-K insulation, no asbestos Internal twist-lock couplers Requires 2" minimum air-space clearance Use for fixed offsets of 15 degree slopes Use in pairs to adjust from 0-30 degree slopes Locking bands (included) allow 360 degree rotation Bands lock components in place at exact offset 6" |